Black Goat · A sweet rain wetting dry land
Yin Water — morning dew. You are seated on the earth energy that controls you — you live with tension and responsibility beneath you.
Storing away in the vault. Good at gathering, keeping and saving — and inclined not to show what is inside.
An officer with a sword sits in the inner room. You carry responsibility heavily and temper yourself with it — tension comes easily, so unwinding is the medicine.
The stems concealed inside 未 (Goat). A branch is not one single energy — it holds this mixture, in these proportions across a 30-day month.
Sweet rain on dry land — the fineness to notice where it is needed and seep in there. Bright about other people’s thirst, and inclined to leave its own for later.
Is Gui Wei actually your day pillar?
The day pillar shifts on solar-term and zi-hour boundaries, so it is not countable by eye. Enter your birth date and the engine computes it in under a minute — free, no account.
Find my day pillar — freeYour day pillar is the stem-branch pair governing the day you were born — Gui Wei (癸未) in this case. It rotates every day through a cycle of sixty, and the boundaries depend on solar terms and the 11pm zi-hour rule, so it is not something you can count by eye. Enter your birth date in our free reading and the engine computes it directly.
Black Goat — the image traditionally attached to it is "A sweet rain wetting dry land". Your Day Master 癸 (Yin Water — morning dew) sits on 未, the Goat, which carries Earth. In the twelve-stage cycle that position reads as Repose, and the seated Ten God is Authority.
No. The day pillar is two characters out of eight — your core axis, not the whole picture. The year, month and hour pillars, the balance of the five elements, and your decade luck all have to be laid on top before a reading means much. Treat a day-pillar page as the doorway, not the room.
Same sixty-cycle, different reading of the same characters. 癸未 is romanised Gui Wei from Mandarin and gyemi from Korean, and Korean saju calls the day pillar ilju (일주). The calculation is identical; the interpretive traditions differ.
The twelve-stage position, seated Ten God and hidden stems are computed by the Ioreum deterministic engine (ruleset ioreum-2026.07). The reading itself is interpretation from the day-pillar tradition, not verified science — we always tell you which part is calculation and which part is tradition.